International tea franchise Gong Cha is celebrating its one-year anniversary Aug. 20 with a buy-one, get-one-free deal on all drinks for up to eight drinks per transaction.

The business offers boba, milk tea, tea lattes, slush drinks, milk coffee, brewed teas and bubble waffles. Gong Cha has more than 1,800 cafes across 20 countries, according to its corporate website.